Method or art of singeing threads



T. F. HUSSA.

' METHOD OR ART OF SINGEING THREADS.

ARPLICATXON FILED JAN. 15. 1918,

1,374,376. Patented Apr. 12, 192R.

W NESSES:

UNlTED STATES THEODORE F. HUSSA, OF MONTCLAIR, NEW JERSEY.

METHOD OR ART OF SINGEING THREADS.

Application filed January 15, 1918.

.To all whom it may concern:

Be it known that I, THEODORE F. HUSSA, a citizen of the United States, residing at Montclair, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Methods or Art of Singeing Threads, of which the following is a specification, reference being had therein to the accompanying drawings, which form a part thereof. 7

My invention relates to method or art of singeing threads and more particularly to such a method or art, the practice of which involves the use of an electrical resistance element.

Heretofore in this art, it has been the practice to pass thread to be singed through an incandescent troughed element in such close juxtaposition thereto as will permit the flame from the element to impinge upon the thread and thus remove thefluff therefrom. If the thread be passed horizontally through the trough, the residue removed by singeing, will fall upon the element and rapidly foul the same in a manner to interfere with the de velopment of an effective flame therefrom. To avoid this difficulty it has been the prac-- tice to arrange the trough vertically, so that the incinerated particles will tend, under gravity, to fall away from the trough. It has been proposed in connection with singe ing apparatus of this general character, to utilize an air et directed axially of .the trough for removing the incinerated parti cles, and promoting combustion about the element, but I have found in actual practice that the use of such a jet has a suflicient cooling effect upon the element, to extinguish the flame, or prevent the element reaching a state of incandescence.

lVith these conditions in mind, it has been my effort to evolve a method or art which in addition to preventing the accumulation of incinerated. particles of fluff upon the incandescent singeing element, will promote combustion about the said element, thus insuring substantial uniformity in the flame volume throughout the entire length thereof, and direct the flame in a manner to insure a more thorough singeing of the thread and permit a more rapid rate; of traverse thereof in relation to said singeing element.

The invention consists in a method or art of singeing threads consisting in the novel steps and practices hereinafter set forth and Specification of Letters Patent.

PatentedApr. 12, 1921.

Serial No. 211,918. a l

described and more particularly pointed out in the claims hereto appended.

Referring. to the drawings:

Figure 1 is a front elevation of a portion I of an apparatus used in the practice of the method or art of my invention; and V F g. 2 1s a vertical sectiontherethrough.

L1ke letters refer to like parts in both of said views. 7

In the practice of the method or art of my invention, I utilize a troughed singeing elernent indicated at a in the accompanying drawings, through which trough the thread 6 to be singed is passed axially thereof. The trough a is so positioned as to extend substantially vertically. The singeing element c 18 made incandescent by an electrical current derived from the bus-bars c and (Z in electrical connection with opposite terminals of said element. As the said thread 6 passes within and in close juxtaposition to the troughed element a the flame from this element will incinerate' the fluff thereon, the thread subsequently being passed over a drum and rewound in the usual manner preparatory to its subsequent use. To prevent the accumulation of incinerated particles upon the element a, and at the same time facilitate the bringing of the element to a high degree of incandescence, I introduce a gentle circulation of air about the element, the general direction of the flow of the air being axially thereof. The manner of introducing the air about the element must be such as not to impinge upon the element, as I have found in practice that the impingement of the air in the form of a j et upon the element has the effect of extinguishing the flame and hence of preventing its action upon the thread to remove the fluff therefrom. To prevent this condition developing in the practice or art of my invention, I use a suction device which will have the effect merely of causing a flow of air at alow rate of speed, the air being admitted in suflicient volume about all sides of the element to avoid the formation of a jet, and cause it to flow about the element without impinging directly thereon in jet form. By directing the air as it enters the current flowing about the element, across the edges of the trough, the flame emanating from said trough, is caused to more or less encircle the thread thus insuring the complete incineration of he fluff at all p i ts about said thread. By

I element, sufficient space being afforded be-.

. troughed element, cre'ating' sub-atmospheric introducing the air upon opposite sides of ranged with the trough thereon extending V vertically, and it is preferable to have the current of air run counter to the natural draft, or downwardly, so that this current of air may assist gravity in carrying away the incinerated fluff,

The direction and control of the air about the element cris secured by the arched plate 6 which incloses said element and extends adjacent the base a thereof carrying said tween the edges of said plate and said base to permit air to flow freely within said plate. said plate will direct the air above the trough, the slow rate of flow of the air axially of said plate and said trough developing the whirling effect above referred to. The means for creating and maintaining the desired circulation of the air with its low rate of flow, may consist of an ordinary fan, as shown,-or of any other desired mechanism.

The method or art of my invention briefly summarized consists in passing a thread axially, through a vertically extending pressure adjacent that end of the element at which the thread passes from theelement after being singed, admitting air'both adjacent that end of the element where the thread enters the trough, and upon opposite sides of the element, and directing the incoming airin a manner to impart a slight whirling action to the gentle current of air thus induced so as to cause the flame, to more or lessfcompletclyenvelop the thread. By causing this current of air to run counter to the natural draft, there is a tendency toward an equalization of the volume of the flame throughout the entire length of the element,- and by maintaining a low rate of flow of the air any tendency towardcxtinguishment of the flame is avoided. The constant.movemeut of air, will prevent the incinerated particles of fluff, accumulating upon, and remove them from adjacent, the element, so as'to insure continuity in the singein g operation under uniform flame conditions. V

The method or art of my invention is not limited to the use of an apparatus having The curvature of the inner wall of the structural characteristics shown in the accompanying drawings, it being apparent that the desired eifect may be secured'in a variety of different ways.

Having described the invention what I claim as new and desire to secure by Letters Patent iis:- V

1. The herein described method or art of sin ein threads consistin in nassin a thread in close juxtaposition to a vertically extending incandescent, electrical resistance member while causing an induced current of air having a low rate of flow to pass axially of, and transversely about, said resistance member.

2'. The herein describedmethod or art of singeing threads consisting in passing a thread in close juxtaposition to a vertically extending incandescent, electrical resistance member while causing an induced current of air having a low rate of flow to pass axially of, and transversely about, said resistance member, limiting the admission of air about said member to one end and upon opposite sides for substantially the full length thereof, and controlling the flow of the incoming air to cause the flame from said element to substantially envelop: the thread.

. 3. The herein described method orart of singeing threads consisting in passing a thread in close juxtaposition to a vertically extending incandescent, electrical resistance member while causing an induced current of air having a low rate of flow to pass'axially of, and transversely about, said resistance member, ina direction counter to the natural draft about said member.

4:. The herein described method or art of singeing threads consisting in passing a thread in close juxtaposition to a vertically extending incandescent, electrical resistance member while causing an induced current of air having a low rate of flow to pass axially of, and transversely about, said resistance member, in a direction counter to the natural draft about said member, limiting the-admission of air about said member to one end and upon opposite sides for substantially the full length thereof, and controlling the flow of theincoming air to cause the flame ."rom said element to substantially envelop the thread.

In witness whereof, I hereunto aiiix my signature in the presence of two subscribing 

